Anchor for furnace lining



Oct. 20, 1931 v Ls. PIETr-:Rs

ANCHOR FOR FURNACE LININGS Filed July 21, 1925 Inv-en 6014:- I Vo S. Pieters By/ww. #am/Mmm PatentedOct. 20, 1931 UNTED STATES PATENT oFFIcE IVON S. PIETmS, 0F CHICAGO, ILLINOIS, ASSIGNOR TO PLIBRICO JOINTLESS FIRE- BRICX COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS ANCHOR FOR FU .RN ACE LININ G .Application filed .Tuly 21, 1926. Serial Nl'o. 123,825.

This invention relates to anchors, more particularly to anchors for anchoring or tying a lining or facing to a wall.

The invention has to do especially with anchoring plastic lire-brick or refractory linings to the structural brick walls of furnaces, and the like, and its objects are the provision of an anchor which will permit contraction and expansion of the lining in drying and firing the same, without injuring the lining or producing undesirable stresses therein, and the provision of an anchor that may be economically produced and conveniently handled and installed.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a perspective view, partially in section, of an anchor embodying the present invention; and

`Figure 2 is a fragmentary section showing a plastic refractory lining or facing as tied to the structural brick wall of a furnace with the anchor of the present invention.

The anchor assembly comprises two parts, both of which may be made up of strap steel Which may be cut from scrap pieces. The part 10 comprises a base 11 having two upturned ends 12 and 13. As will be noted from Figure 2, the ends are preferably made long enough to partially surround a brick, but any convenient or desired proportions may be used. The part 14 comprises a base 15 having a relatively long upturned end 16, and a relatively short upturned end 17. A slot 18, forming an eye of just suiicient width to easily accommodate the end or linger 13 of the part 10, is formed as b-y stamping out a lip 19 from the base 15, and in applying the l part 14 to the part 10 it is simply slipped over the tongue 13 which extends upwardly through the opening or slot 18. The slot 18 is longer than the Width of the upturned end 13 of the part 10, as shown in Figure 1, this difference permitting side play or relative motion of translation between these parts in a transverse direction. This makes play in the connection between the anchor parts in this direction, so that relative expansion and contraction may take place without setting up undesirable stresses in the wall or lining.

-lining to an exact The upturned end 13 of the part 10 with the slot or opening in the part 14 provides a quick detachable connection between these parts. They are adapted to be conveniently disconnected for handling and installation. The parts 10 may all be secured in the brick wall 21 first, and the parts 14 may be conveniently connected or applied theretoas the lining 24 is run up.

Owing to the slidable relation between the parts 10 and 14, the vertical positions of the parts 14 with respect to the vary. Ample Vertical movement of the parts 14 relative to the parts 10 is permitted without the parts becoming disengaged and without the bases 11 and 15- coming into contact. It is not, therefore, necessary to bring the height each time before applying the part 14, and by Securing the parts 10 in the wall parts 14 as the lining is laid or run up, the parts 14 will not interfere with the laying of the lining 24.

As will be seen from Figure 2, the tie 10 is placed about one of the bricks 2O in the retaining wall 21 and is anchored between two courses of bricks, as by embedding it in the mortar 22 between the courses. The dimensions of the tie are such that one of the ends willproject out into the lining to engage the anchor part 14. To assure play at the connection between the anchor part-s 10 and 14, and to prevent the plastic lining material from interfering with this play, wet paper, asbestos, or any other suitable material 23 may be loosely packed about the Joint or connection, and the plastic lining- 24 then built around it. As many anchors as desired may be used to hold the lining 24, adjacent lining wall 25 in place.

The upturned end 12 holds the part 10 firmly against displacement from the coursesbetween which it is anchored. The length of the base 11 is preferably longer than the dimension of that part of the brick along which it extends, so as to space the end or tongue i 13 from the surface of the wall 21 sufficiently to receive the slotted end of the part 14. The end 17 and the oppositely turned tongue 19 may cooperate with opposite sides of the 21 first and applying the parts 10 may end or tongue 13, and the upturned end 16 of the part 14 anchors the lining to the wall and against separation therefrom.

The slot 18 is preferably of a width to receive the tongue 13 without permitting appreciable relative movement between the anchor parts in a direction intersecting the plane of the surface of the wall 21.

After being laid up with the anchors installed the plastic lining maybe then dried by a slow fire and subsequently hardened by raising the temperature. Should the temperature tend to melt or burn out the an-A chors, the lining will be amply strong enough to support itself by that` time.

It is then apparent that I have provided a means for anchoring the plastic lining to the retaining wall, which will permit play between the parts and relative motion oftranslation between them in different directions parallel to the engaging faces of the lining and wall. This permits theexpansion and contraction of the lining during the drying and hardening process without producing undesirable stresses therein.

I claim:

1. In a furnace, a retaining wall, a lining therefor, and anchor means holding the lining to the wall, said anchor means being adapted to permit expansion and contraction of the lining independently of the wall.

2. In a furnace, a retaining wall, a lining, and an anchor holding the lining to the wall, said anchor comprislng two members' embedded in the lining and the wall, respectively2 and connected by a joint adapted to permit relative movement between said mem- -bers substantially parallel to the wall.

3. In a furnace, a retaining wall, a lining of originally plastic material for said wall, and means for holding said lining to said wall, said means comprising an element se cured to said lwall and an element lodged in said lining against withdrawal therefrom, said elements being joined against separation in direction transversely of the adjacent faces of said wall and lining and relatively movable in all directions parallel to said faces, whereby expansion and contraction of said lining independently of said wall is permitted.

4. An anchor for holdin@ a lining of originally plastic material to the wall of a furnace comprising an element for securing to Y said wall and an element for lodging in said lining against withdrawal therefrom, said elementsbeing joined against separation in one direction and relatively movable in all directions in a plane normal to said firstnamed direction, whereby independent expansion and contraction of the wall and lining to which said anchor is applied may be permitted.

5. Means for anchoring plastic linings to furnace walls constructed wholly of masonry,

and originally lined with lire brick or a similar refractory, comprising in combination, a member adapted to be secured to a furnace wall, a second member adapted to be embedded in a plastic lining for said wall and means for connecting said members together whereby the plastic lining is maintained in close proximity to the furnace walls but is permitted to move in expanding and contracting through short distances in directions parallel to the wall without cracking or bulging, said anchored member being a plate adapted for easy embedding in the masonry.

6. Means for anchoring linings to furnace walls constructed wholly of masonry, comprising in combination, a member adapted to be secured to a furnace wall, a second member adapted to be embedded in a plastic lining for said wall and means for connecting said members together whereby the plastic lining is maintained in close proximity to the furnace walls but is permitted toV move in expanding and contracting through short distances in directions parallel to the wall Without cracking or bulging, said anchored member being a plate adapted for easy embedding in the masonry during or after construction of wall.

7. Means-for anchoring linings to furnace walls constructed of masonry comprising, in e5 combination, a member adapted to be secured to the furnace wall by the emplacement of a `portion thereof within a masonry joint so as to lie within the wall and substantially parallel to the adjacent faces of ing, a second member adapted to be embedded in a plastic lining for said wall, and means for connecting said members together whereby the plastic lining is maintained in close proximity to the furnace walls but is permitted to move, in expanding and contracting, through short distances in directions parallel to the wall without cracking or bulg- In a furnace, a retaining wall, a monolithic lining, a tie member anchored in said retaining wall, an anchor member embedded in said lining, and a tongue and slot connection between the inner end of the tie member and the outer end of the anchor member, the slot of said connection being unobstructed and disposed in substantial parallelism with the inner face of the retaining wall.

9. In anchoring means of the character described, a U-shaped member having a transverse slot through its bight portion and adjacent one arm, and a second U-shaped the wall and linmember having a relatively narrow arm pro- Leesmamounted upon the tongue of said first part and adapted for lateral movement relative thereto, and a tongue at the opposite end of said second part turned out of the plane thereof and embedded in the lining.

11. In a furnace, a brick retaining wall, a monolithic lining, and means for holding said lining in place comprising a tie member partially surrounding one of the bricks in said wall and projecting into said lining,'an anchor member embedded in said lining, and unobstructed tongue and slot means connecting the tie and anchor members, said means preventing movement between the tie and anchor members in a direction intersectin the adjacent faces of the wall and lining an permitting relative transverse movement between the tie and anchor members. l

12. In a furnace, a brick retaining wall, a monolithic lining, a tie member partially surrounding a brick in said retaining wall and having a portion extending into said lining, and an anchor member embedded in said lining and having an elongated aperture to engage the.' extending portion of said tie mem- 13. In a construction of the character described, a wall, a lining therefor, an anchor member secured in the wall and projecting beyond the inner face of the wall into the lining, said anchor member being provided at its inner end with a straight arm disposed substantially parallel to the inner face of the wall, and an anchor member secured in the lining and having a slot of relatively great length receiving said arm, the connection between the arm and the second anchor member being unobstructed by the lining permitting free movement of the second anchor member lengthwise of the arm and lengthwise of the slot accommodating expansion and contraction of said lining in all directions in its plane, the lining being otherwise unsecured to the wall.

14. In a furnace, a retaining wall, a lining, and an anchor for holding said lining to said wall said anchor comprising two members embedded in the liningand the wall, respectively, and connected by a joint adapted to permit relative movement between said members substantially parallel to the wall, and a packing about said joint to prevent said joint from becoming clogged and comprising a quantity of loose brous material.

In witness whereof, I hereunto subscribe my name this 9th day of July, 1926.

I'V'ON` S. PIETERS. 

